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Full Stack Development Intern Jobs in Ontario (NOW HIRING)

Citi is seeking a highly motivated and accomplished candidate for Java Full Stack Dev Tech Lead role in Wholesale Lending Technology team that serves Institutional Credit Management (ICM). It is a ...

Quality AssuranceChampion test-driven development, including unit and front-end testing (Cypress ... Who you areProven experience as aFull Stack Developer Lead orSenior Full Stack Developerwith a ...

... development and cloud infrastructure. The ideal candidate will possess deep expertise in our ... Full-Stack Proficiency in Java, Python, and JavaScript. * Hands-on experience with cloud providers ...

... development and cloud infrastructure. The ideal candidate will possess deep expertise in our ... Full-Stack Proficiency in Java, Python, and JavaScript. * Hands-on experience with cloud providers ...

... Full Stack Development experience \n * Expert level knowledge of PHP and JavaScript \n * Experience in Laravel and React \n * The right to work in Ireland immediately \n \n \n \n \n \n

June 1st, 2026 SKILLS REQUIRED * 10+ years of experience as in full stack development * Expertise with front end tools and technologies including Angular Material, Node.JS, Rust, Webpack, Typescript

Minimum 3 (ideally 5) years Full Stack Development experience building applications \n * 3+ years with Node.js or a similar backend programming language (PHP, C#, Java, Ruby, Python) \n * 3\-5 years ...

Support the architectural direction, solution specification, development, implementation and ... Full stack development experience is preferred. \n * Bachelor's degree in a relevant discipline ...

Applies full stack development patterns and software architecture principles to write robust and maintainable code. * Collaboration: Works effectively in cross-functional teams, partnering with ...

Minimum 3 (ideally 5) years Full Stack Development experience building applications \n * 3+ years with Node.js or a similar backend programming language (PHP, C#, Java, Ruby, Python) \n * 3\-5 years ...

Be Seen First

Senior AI Developer/ Full Stack

Toronto, ON · On-site

CA$115K - CA$130K/yr

This role is critical to the development of a fast-moving, mission-critical MVP, ensuring that ... Full Stack Product Development * Contribute to the operator and admin platform using React and ...

Support the architectural direction, solution specification, development, implementation and ... Full stack development experience is preferred. \n * Bachelor's degree in a relevant discipline ...

Full Stack Cloud Native Sr. Developer - Digital Manufacturing This is a hybrid role based out of ... Apply agile development best practices using the Scrum Framework * Maintain a strong focus on ...

Full Stack Developer

Ottawa, ON · Hybrid

CA$80K - CA$95K/yr

A strong full-stack developer who enjoys both problem-solving and building * Someone comfortable ... Strong hands-on experience with PHP development * Proficiency in JavaScript, HTML, CSS, and ...

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Full Stack Development Intern information

What kinds of projects and technologies do Full Stack Development Interns typically work on during their internship?

Full Stack Development Interns often contribute to both front-end and back-end features of web applications, working with frameworks like React or Angular for the user interface and Node.js, Python, or Java for server-side logic. Interns may be assigned tasks such as building new components, fixing bugs, writing APIs, or assisting with database integration. It's common to collaborate closely with designers, senior developers, and QA testers in an agile environment, gaining exposure to the entire software development lifecycle. This hands-on experience helps interns understand how different technologies interact and prepares them for more advanced roles in the future.

What is a Full Stack Development Intern?

A Full Stack Development Intern is a student or recent graduate who assists with building both the front-end (client side) and back-end (server side) components of web applications. They typically work under the supervision of experienced developers to learn and contribute to projects using various programming languages and frameworks. Responsibilities may include writing code, debugging, testing, and collaborating with design and development teams. This internship provides practical experience in the entire web development process and helps prepare interns for a career as a full stack developer.

What are the key skills and qualifications needed to thrive as a Full Stack Development Intern, and why are they important?

To thrive as a Full Stack Development Intern, you need foundational knowledge of front-end and back-end programming languages such as JavaScript, HTML, CSS, and at least one server-side framework, alongside a relevant academic background in computer science or a related field. Familiarity with version control systems like Git, databases (SQL/NoSQL), and cloud platforms is often expected, and experience with tools like React, Node.js, or Docker can be advantageous. Strong problem-solving skills, adaptability, and effective communication help interns collaborate within teams and learn quickly in dynamic environments. These skills and qualifications are crucial for efficiently contributing to diverse development tasks and succeeding in fast-paced tech teams.
What are the most commonly searched types of Full Stack Development jobs in Ontario? The most popular types of Full Stack Development jobs in Ontario are:
Java Full Stack Dev Tech Lead

Java Full Stack Dev Tech Lead

Citi

Mississauga, ON • Hybrid

Full-time

Posted 4 days ago


Job description

Citi is seeking a highly motivated and accomplished candidate for Java Full Stack Dev Tech Lead role in Wholesale Lending Technology team that serves Institutional Credit Management (ICM). It is a leadership position responsible for the strategic direction, establishment, and implementation of new or significantly revised application systems and programs. This role involves driving architectural decisions, managing key stakeholder expectations, and providing hands-on technical guidance to ensure the successful delivery of complex solutions. 

This role offers a unique opportunity to immerse oneself in and contribute significantly to the Wholesale Lending Division, gaining extensive exposure to business and technology initiatives aimed at maintaining Citi's leadership position. The environment fosters innovation and operates within a Hybrid-Agile framework.


Responsibilities:

  • Strategic Technical Leadership: Provide vision and strategic direction for the full stack development across Angular/React, Java, and Spring Boot ecosystems, ensuring alignment with enterprise architecture standards and business objectives.

  • Architectural Design & Solutioning: Lead the detailed design and architectural blueprinting of scalable, resilient, and performant solutions, leveraging deep expertise in Java, Spring Boot, Kafka, and microservices architectures.

  • Team Leadership & Management: Work with engineers onshore, offshore and matrix teams to implement a business solution. Mentor, and manage high-performance engineering teams, fostering a culture of technical excellence, collaboration, and continuous improvement.

  • Stakeholder Engagement & Management: Proactively engage with senior business stakeholders, product owners, and other technology groups to understand requirements, manage expectations, communicate progress, and influence strategic decisions.

  • Hands-on Technical Guidance: Provide hands-on expertise in complex coding challenges, code reviews, and technical problem-solving. Guide teams in implementing best practices.

  • Quality Assurance & Standards: Champion and enforce high standards for code quality, security, and maintainability. Drive the adoption of industry best practices, design patterns, coding standards, and modularity across all development efforts.

  • Innovation & Adoption: Continuously evaluate and advocate for the adoption of new development tools, libraries, and approaches to enhance delivery quality, efficiency, and system resilience.

  • Vulnerability & Security Management: Implement stringent security practices, analyze applications for vulnerabilities, and lead efforts in ensuring compliance with Citi's security policies and standards.

  • Problem Resolution & Escalation: Act as a primary escalation point for complex technical issues, exercise expert judgment to identify root causes, analyze information, and implement effective, sustainable solutions.


Required Skills:

  • 8+ years of hands-on experience in building enterprise scale highly componentized applications

  • Expert-level Full Stack Development: Demonstrated experience in Angular, React, and associated testing frameworks (Jest).

  • Advanced Java Ecosystem Proficiency: Expertise in Java, Spring Framework, Spring Boot, Spring Security, Spring Web, Spring Data, coupled with hands-on experience in Threading, Collections, Exception Handling, JDBC, OOD/OOP Concepts, and GoF Design Patterns.

  • Messaging & Integration Architectures: Experience with Messaging-Oriented Middleware (MoM), and Micro-services utilizing REST, with a strong understanding of Kafka and other enterprise messaging systems (e.g., RabbitMQ, ActiveMQ, IBM MQ).

  • Cloud-Native & DevOps Expertise: Proven experience in designing and implementing cloud-ready applications and deployment pipelines on large-scale container platforms (e.g., Kubernetes, Docker). Strong understanding of CI/CD environments and tools (Tekton, Harness, Jenkins, Code Quality).

  • Database Expertise: Proficient in SQL, particularly Oracle dialect, with comprehensive knowledge of database SQL optimization.

  • Architectural & Design Principles: In-depth knowledge of industry standard best practices, design patterns, coding standards, modularity, and prototyping.

  • System Optimization & Troubleshooting: Advanced skills in debugging, performance tuning, and optimizing complex enterprise applications.

  • Agile & SDLC Leadership: Thorough understanding and practical experience leading teams within the Agile SDLC framework.

  • Leadership & Communication: Consistently demonstrates clear and concise written and verbal communication skills, with a proven ability to lead, influence, and articulate complex technical concepts to both technical and non-technical senior stakeholders. Demonstrated ability to adjust priorities quickly as circumstances dictate, and project management skills to manage multiple critical deliverables.

Nice to have Skills:

  • Industry: Experience developing applications in Financial Services.

  • Documents Storage: Experience with storage of documents in Documentum, S3 compatible Software Defined Storage (SDS) systems.

  • Application Servers: Experience with application servers like Tomcat, Jetty, Apache HTTPD.

  • Application Performance Monitoring Tools: Experience with APM tools like Dynatrace, AppDynamics.

  • Caching Technologies: Experience with distributed caches like Hazelcast, MemCached, Redis.

  • AI: Experience working with Gen AI Integrations.


Education:

  • Bachelor’s degree/University degree or equivalent experience

  • Master’s degree preferred


This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.

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Job Family Group: Technology

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Job Family:Applications Development

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Time Type:Full time

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Primary Location Full Time Salary Range:$120,800.00 - $170,800.00

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Most Relevant Skills Please see the requirements listed above.

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Other Relevant Skills For complementary skills, please see above and/or contact the recruiter.

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Automated Processing and AI

We use automated processing, including artificial intelligence, for our legitimate business interests (or our reasonable and appropriate business purposes) to identify and align the candidate's skills and abilities with a specific job opening. Additionally, if you so choose, or consent, we can match your skills and abilities to other suitable roles at Citi.

Importantly, all our hiring processes and decisions, including determining your suitability for a role, are conducted, checked, and decided by individuals. Our automated processing and AI do not involve relying on automatic or autonomous decision-making. Please refer to any Jurisdictional Considerations, with specific provisions for your country (where relevant) for further details.

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This job opening is for an existing job vacancy.

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Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.

 

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View Citi’s EEO Policy Statement and the Know Your Rights poster.